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ELOVL5 Regulates Ferroptosis in Breast Cancer Cells
Doklady Biochemistry and Biophysics. 2025. Vol. 525. P. 532–540.
K. V. Klycheva, A. V. Razumovskaya, A. D. Shatsillo, M. D. Mastykina, T. A. Kulagin, M. O. Silkina, S. V. Nikulin
Today, breast cancer (BC) occupies a leading position in prevalence and mortality from oncologi- cal diseases among the female population worldwide. Ferroptosis is a special type of cell death associated with peroxidation of intracellular lipids. It is a promising option for the therapy of BC resistant to traditional meth- ods of treatment. The ELOVL5 gene, involved in the elongation of long-chain polyunsaturated fatty acids (LC-PUFA), was previously associated with BC progression. In this work, the effect of ELOVL5 knockdown on the dynamics of ferroptosis induction in MDA-MB-231 cells under the influence of docosahexaenoic acid (DHA) and erastin was investigated. A comparative analysis of changes in the expression of individual genes under the influence of these agents was also carried out. It was shown that a decrease in ELOVL5 expression increases cell sensitivity to both agents, while DHA causes earlier cell death. The protective effect of ferropto- sis inhibitors (ferrostatin-1 and deferoxamine) confirmed the involvement of this pathway in the observed effects. Differences in the expression of genes associated with oxidative stress, inflammation and proliferation were also revealed, indicating different molecular trajectories of ferroptosis in cells with different ELOVL5 gene expression. Thus, the present study deepens the understanding of the contribution of the ELOVL5 gene to the regulation of ferroptosis and can be used in the development of targeted therapy for breast cancer.
Publication based on the results of:
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Involvement of the transcription factor Bach1 in various scenarios of cellular regulation is reviewed herein. To date, the most extensively studied role of Bach1 is that of a repressor of the antioxidant genetic program initiated by the Nrf2 factor. This program counteracts oxidative stress, which triggers both ferroptosis and the intrinsic apoptotic pathway. Bach1 functions unrelated ...
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Effects of Wheat Malt Extract on Molecular and Behavioral Markers in Aged APP/PS1 and Wild-Type Mice
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Background
Breast cancer is a leading cause of mortality and morbidity among females worldwide. As part of the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2023, we provided an updated comprehensive assessment of the epidemiological trends, disease burden, and risk factors associated with breast cancer globally, regionally, and nationally from 1990 to 2023.
Methods
Breast ...
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Ferroptosis is considered a promising strategy for inducing the death of tumor cells. However, the effectiveness of known ferroptosis inducers, such as erastin, is in some cases limited, which stimulates the search for new combined application strategies. In this study, the combined effect of erastin and docosahexaenoic acid (DHA) on prostate cancer cells was examined ...
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Accumulating evidence suggests that genetic and epigenetic biomarkers hold potential for enhancing the early detection and monitoring of breast cancer (BC). Epigenetic alterations of the Homeobox A2 (HOXA2) gene have recently garnered significant attention in the clinical management of various malignancies. However, the precise role of HOXA2 in breast tumorigenesis has remained elusive. To address this point, we conducted ...
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Aims: The purpose of this study was to investigate the prognostic significance of cholesterol uptake genes in predicting the survival of breast cancer patients.
Background: Cholesterol plays a crucial role in the homeostasis of tumor cells. It is known that cholesterol levels can influence important parameters of the disease, such as sensitivity to therapy, progression, and ...
Added: May 6, 2025
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Breast cancer remains a major challenge and new therapeutic approaches are needed for its treatment. Ferroptosis is considered a promising alternative cell death mechanism to eliminate resistant cancer cells. In previous works, we identified that lower IGFBP6 gene expression in tumor tissue corresponds to a worse prognosis for breast cancer patients and, at the same, time makes ...
Added: April 9, 2025
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Cancer chemoresistance presents a challenge in oncology, often leading to treatment failure and disease progression. CD44, a multifunctional cell surface glycoprotein, has garnered attention for its involvement in various aspects of cancer biology. Through alternative splicing, CD44 can form isoforms with the inclusion of only standard exons, typical for normal tissue, or with the addition ...
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To date, breast cancer is the most common oncological pathology among the female population both in Russia and worldwide. Previously, our laboratory team identified a significant prognostic marker for breast cancer, namely the ELOVL5 gene, the expression level of which in couple with the IGFBP6 gene allowed to predict the probability of breast cancer recurrence ...
Added: November 11, 2024
D. M. Olkhovik, M. O. Silkina, A. V. Razumovskaya et al., Doklady Biochemistry and Biophysics 2025 Vol. 520 P. 25–28
Ferroptosis is an iron-dependent form of programmed cell death (PCD) associated with lipid membrane peroxidation. It has gained attention in cancer research because some tumor cells that are resistant to other forms of PCD are sensitive to ferroptosis. Despite the significant amount of research on ferroptosis, the list of known inducers remains limited, creating opportunities ...
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To date, colorectal cancer (CRC) remains one of the most common malignant neoplasms worldwide with a high mortality rates. In recent decades, progress in the study of the mechanisms underlying drug resistance in CRC confirmed the need to search for new therapeutic approaches. In particular, tumor cells that are resistant to standard therapy and to ...
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